If I were you...r/o

First of all, I would not go to him right away. This is what I would do:

1) Find out what he is up to. Do you have any good friends or family members in China who could secretly find out for you what he is doing? Is he having an affair? Does he spend a lot of money? What life style is he having in China? etc. Basically, you need to find out if there are any warning signs that he has indeed changed.

2) If he is having an affair or leading a seperate life, you need to take measures to protect your child and yourself BEFORE you go to him. I would open a seperate bank account right away and deposit salary there. If you two have joint credit cards, cancel them and open your own one (provided that you are the primary holder). I would also consult with an atterney and find out what I can do to further protect myself.

Good luck.